Unit Rates

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities where one of the quantities is expressed as one unit. It is often used to determine the cost per item, speed, or efficiency.

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the first quantity by the second quantity. For example, if you have 15 dollars for 2 pounds, the unit rate is 15 ÷ 2 = 7.50 dollars per pound.

Front

Find the unit rate: $15 for 2 lbs.

Back

$7.50/lbs

Front

Find the unit rate: 675 beats in 5 minutes.

Back

135 beats/minute

Front

Find the unit rate: $49.99 for 450 minutes of cell service.

Back

$0.11/minute

Front

Find the unit rate: 324 minutes to cook an 18 lb. turkey.

Back

18 min/lb

Front

Find the unit rate: 56 roses in 4 rows.

Back

14 roses/row

Front

What is the unit rate of 100 miles in 2 hours?

Back

50 miles/hour

Front

If a car travels 240 miles in 4 hours, what is the unit rate?

Back

60 miles/hour

Front

How do you express a unit rate in terms of cost per item?

Back

To express a unit rate in terms of cost per item, divide the total cost by the number of items. For example, if 12 apples cost $6, the unit rate is $6 ÷ 12 = $0.50 per apple.